window.location.search = "?name=cca&val=333" //参数

window.location.href //获取完整路径

window.location.hash  //哈希值

window.location.hostname //主机名

window.location.port = 80 //端口

window.location.pathname //路径

window.location.protocol //协议

window.location.assign("http://v.qq.com") 等价于
window.location == window.location.href